Metabolic abnormality in the right dorsolateral prefrontal cortex in patients with obsessive-compulsive disorder:
Shin-Eui Park1, Nam-Gil Choi2, Gwang-Woo Jeong1
11Interdisciplinary Program of Biomedical Engineering,Chonnam National University,Gwangju,Republic of Korea.
Objective:
Proton magnetic resonance spectroscopy (1H-MRS) was used to evaluate metabolic changes in the dorsolateral prefrontal cortex (DLPFC) in patients with obsessive-compulsive disorder (OCD).
Methods:
In total, 14 OCD patients (mean age 28.9±7.2 years) and 14 healthy controls (mean age 32.6±7.1 years) with no history of neurological and psychiatric illness participated in this study. Brain metabolite concentrations were measured from a localised voxel on the right DLPFC using a 3-Tesla 1H-MRS.
Results:
The metabolic concentration of myo-inositol in patients with OCD increased significantly by 52% compared with the healthy controls, whereas glutamine/glutamate was decreased by 11%. However, there were no significant differences in N-acetylaspartate, choline, lactate and lipid between the two groups.
Conclusion:
These findings would be helpful to understand the pathophysiology of OCD associated with the brain metabolic abnormalities in the right DLPFC.
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